deceptive

artful, crafty, cunning, devious, foxy, guileful, shady, shifty, slick, sly, sneaking, sneaky, subtile, subtle, trick, trickish, tricky, underhand, underhanded, wily

inaccurate, incorrect, wrong

bewildering, confounding, distracting, perplexing, puzzling

ambidextrous, crooked, defrauding, dishonest, dissembling, double-dealing, duplicitous, faithless, fast, fraudulent, knavish, lying, mendacious, untrustworthy, untruthful

bogus, counterfeit, fake, feigned, forged, jive [slang], phony (also phoney), sham, spurious

insidious, perfidious, treacherous

ambiguous, circuitous, equivocal, evasive

artificial, backhanded, hypocritical, insincere, left-handed, two-faced

unconscionable, unethical, unprincipled, unscrupulous

deceitful, deceiving, deluding, delusive, delusory, false

artful, beguiling, cagey (also cagy), crafty, cunning, foxy, slick, sly, subtle, wily

defrauding, devious, furtive, slippery, sneaking, sneaky, trickish, tricky

insidious, perfidious, treacherous